<
programming> A description of an
object-oriented design
technique which names, abstracts and identifies aspects of a
design structure that are useful for creating an
object-oriented
design. The
design pattern identifies
classes and
instances, their roles, collaborations and
responsibilities. Each
design pattern focuses on a particular
object-oriented
design problem or issue. It describes when it
applies, whether it can be applied in the presence of other
design constraints, and the consequences and trade-offs of its
use.
{
Home
(http://st-www.cs.uiuc.edu/users/patterns/patterns.html)}.
[
"Design Patterns: Elements of Reusable Object-Oriented
Software", Erich Gamma, Richard Helm, Ralph Johnson, and John
Vlissides].
(1997-07-21)